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r 1638,164 1927' w. s. PARKER CAM SLIDE ADJUSTMENT FOR KNITTiNG-MACHINES Filed Nov. 11, 1922 Patented Aug. 9, 1927.

I UNITED.

WILLIAM s. 'Anxnn, on nooixi'onn, InLINoIs, Ass enon 'ro Iai'mslon arieikiarIIve COMPANY, OF Rook-roan, ILLINoIs, A. CORPORATION on ILLINOIS.

CAM-SLIDE Anjusrivtnnr FoR Kim-rum MAoHInEs.

Application filed november'u, 1922. "Serial 1%. 600,247.

This invention relates to flat bed knitting :machines; and the object is to improve the cam slide mechanism by the provision of a novel adjustment, whereby cams at one side signed for application to the needle-actuating-cam slides. Heretofere, these cam slides or bars, one for the needles on-each bed,thave been fixed. to a drive "blockior crosshead reciprocated by a main operating lever. :In

. order to secure pro er Faction of the needles of one bed relatively to those of the other, especially the timing of the needles with respect to the crossing point, considerable difficulty has been experienced, due to the fact that one of the cam sides had to be removed and the cam ground off or addedto. as the case might be, until the proper action was obtained. My present invention obviates this slow, diflicult and costly method of set ting the needle cams, and permits quick adjustment of one of the cam slides, without;

removal, for regulating to a fine degree of accuracy, the action of the needles of one bed with respect to those of the other.

Referring to the drawing, Figure 1 is a side elevation of the drive end only of a flatbed knitting machine, em-

bodying my invention i Fig. 2 is a. top view of the drive end of the needle cam slide;

Fig. 3 is a longitudinal section taken on the line 3-3 of Fig. 2; I

Fig. 4 is a cross-section taken on the line 4- of Fig. 3; and

Fig. 5 is a. perspective view of the adjustable connector. between the cam slide and drive block.

While my invention is applicable toany flat bed knitting machine, it is in the present instance. applied to a Burson type knitting machine. In the drawing, only such parts of the machine are shown as are necessary for an understanding of the present invention. 1

Those parts shown in Fig. 1, comprise the frame designated generally by 6, pattern cylinder 7, yarn-carrier 8, needle-actuating cam slide 9. and the main operating lever 11,

which is attached at its upper end to the drive block or cross head 12, which inturn is connected to the yarn carrier and cam slides, and is adapted to be operated by j'ected and withdrawn by theoperation of a cam slide, the number-of needles inaction oscillation of the lever 11 for reciprocating th'e yarn-carrier and cam slides. The drive block and coi'ine'cted parts are guided *and supported by a carriage 18, equipped at its lower end with a roller which rides on a stationary track 1st fixed to the frame. As

is "well known, this. type of machine is characterized by its opposed banks of needles, each of which isadapte'd to be pro being controlled by the pattern cylinder.

The purpose ofthis inventioniis to enable adjustment of the needle cam slide or the cams at one side of the machine with respect to that on the other, so that the action of the needles of one bed may be controlled very accurately with respect to the needles ofthe other bed, especially with regard to their point of crossing The co-operative action of the needles, and'consequently the quality of the knitting, depends upon the accuracy of this setting of the cam slides.

The operation of ce-rtainneedles of one bed with respect to those of the other at predetermined times is a matter of critical importance especially in the knitting of a fashioned vfabric. For example in knitting a stocking certain needles of both beds are brought into cooperation during the setup, that is, the knitting of the initial partof the fabric, and at the cross-over stitches during the widening.

In the present example, I have for purpose of simplicity, applied the desired adjusting means directly bet-ween one of the cam slides and the drive block in such a way as not to require substitution of new parts. Said means comprises an adjustable connector 15 resembling an elongated key rectangular in cross section, fitted for longitudinal movement in the groove 16 in the top of the drive block 12. This connector carries a pair of fixed upstanding pins 17, which fit snugly in holes 18 in the slide 9. Bolts 19 pass through registering elongated slots 21 in the slide 9 and connector 15, and

are threadedly engaged in the block, 12. An

contiguous faces of said end. A lock nut 26 on said screw serves to secure it in set posi* tion.

From the foregoing, it will be manifest that the bolts 19 when tightened, clamp the cam slide 9 rigidly to the drive block 12, and that after loosening these bolts the screw 22 may be turned for adjusting the connector 15 and consequently the slide 9 longitudinally. This obviously adjusts the needle-actuating cams (not shown) on the slide 9 with respect to those on the needle cam slide at the other side of the machine; and it will be manifest that by reason of the structure provided, the adjustment may be easily and plicat-ion of my invention, it should be understood that the same might be applied in various ways to knitting machines of this type, without departing'from the spirit and scope of the invention asexpressed in the appended claim. 1'

I claim:

In a flat bed knitting machine, in combination, opposed beds of needles, needleactuating cams and a reciprocable camslide for each bed, a common means for reciproeating the cam slides, and an adjustable connector between one of the slides and said means, relatively fixed to the slide as regards longitudinal movement and movable upon and with respect to said means for adjusting said slide relatively to the other slide, a screw connection between said con-' ne'ctorand means for making sa d adjustment, and means for clamping said adjustable slide and connector to said slide-reciprocating means. 7

WILLIAM S. PARKER. 

